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XXE vulnerability in XSLT parsing in `org.hl7.fhir.core`

High
dotasek published GHSA-gr3c-q7xf-47vh Nov 8, 2024

Package

maven org.hl7.fhir.dstu2016may (Maven)

Affected versions

< 6.4.0

Patched versions

6.4.0
maven org.hl7.fhir.dstu3 (Maven)
< 6.4.0
6.4.0
maven org.hl7.fhir.r4 (Maven)
< 6.4.0
6.4.0
maven org.hl7.fhir.r4b (Maven)
< 6.4.0
6.4.0
maven org.hl7.fhir.r5 (Maven)
< 6.4.0
6.4.0
maven org.hl7.fhir.utilities (Maven)
< 6.4.0
6.4.0

Description

Summary

XSLT parsing performed by various components are vulnerable to XML external entity injections. A processed XML file with a malicious DTD tag ( ]> could produce XML containing data from the host system. This impacts use cases where org.hl7.fhir.core is being used to within a host where external clients can submit XML.

Details

This is related to GHSA-6cr6-ph3p-f5rf, in which its fix ( #1571, #1717) was incomplete.

References

https://cwe.mitre.org/data/definitions/611.html
https://cheatsheetseries.owasp.org/cheatsheets/XML_External_Entity_Prevention_Cheat_Sheet.html#jaxp-documentbuilderfactory-saxparserfactory-and-dom4j

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

CVE ID

CVE-2024-52007

Weaknesses

No CWEs

Credits